{"title":"低比特率视频电话会议的音频压缩和回波消除","authors":"P. Chu","doi":"10.1109/ASPAA.1991.634116","DOIUrl":null,"url":null,"abstract":"The constraints for audio compression and echo cancellation in low bit rate videoteleconferencing (56 to 128 thousand bits per second) difeer in many important respects from audio-only teleconferencing. Algorithms which have been optimized for audio-only communications may be improved significantly or require significant improvement. In this talk, audio requirements will be presented, and we shall demonstrate with a tape how PictureTel has addressed these problems in their latest commercial product. A summary of the talk follows.","PeriodicalId":146017,"journal":{"name":"Final Program and Paper Summaries 1991 IEEE ASSP Workshop on Applications of Signal Processing to Audio and Acoustics","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Audio Compression and Echo Cancellation for Low Bit Rate VideoTeleconferencing\",\"authors\":\"P. Chu\",\"doi\":\"10.1109/ASPAA.1991.634116\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The constraints for audio compression and echo cancellation in low bit rate videoteleconferencing (56 to 128 thousand bits per second) difeer in many important respects from audio-only teleconferencing. Algorithms which have been optimized for audio-only communications may be improved significantly or require significant improvement. In this talk, audio requirements will be presented, and we shall demonstrate with a tape how PictureTel has addressed these problems in their latest commercial product. A summary of the talk follows.\",\"PeriodicalId\":146017,\"journal\":{\"name\":\"Final Program and Paper Summaries 1991 IEEE ASSP Workshop on Applications of Signal Processing to Audio and Acoustics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1900-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Final Program and Paper Summaries 1991 IEEE ASSP Workshop on Applications of Signal Processing to Audio and Acoustics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ASPAA.1991.634116\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Final Program and Paper Summaries 1991 IEEE ASSP Workshop on Applications of Signal Processing to Audio and Acoustics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ASPAA.1991.634116","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Audio Compression and Echo Cancellation for Low Bit Rate VideoTeleconferencing
The constraints for audio compression and echo cancellation in low bit rate videoteleconferencing (56 to 128 thousand bits per second) difeer in many important respects from audio-only teleconferencing. Algorithms which have been optimized for audio-only communications may be improved significantly or require significant improvement. In this talk, audio requirements will be presented, and we shall demonstrate with a tape how PictureTel has addressed these problems in their latest commercial product. A summary of the talk follows.
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